Let's make it a 9:00 AM start this time - this might work better with the weather.
I know you did a similar ride with Bob when I was on Tour de Nebraska bit I thought this might be good again this week. The route might change to my figure 8 route (example of this route) keeping us nearer the start of the forecast suggests such an alteration.
This route is right at 30 miles; 18.7 miles out and 11.3 miles back. Breakfast at Roxanne's in Platte City.